Heating and ventilating range



(No Model.) 2 Sheets-Sheet 1. H HOWE HEATING AND VBNTILATING RANGE.

Patented Jan. 7, 189 0.

(-No Model.) 2 Sheets-Sheet 2.

- H. HOWE.

HEATING AND VENTILATING RANGE.

Patented Jan. '7, 1890.

.I ,i'rllunllloirllllllvl1ulllnllllt a r iii if WITNESSES."

N. PrTtnS. Pv-ewuma UNITED STATES PATENT ()EEIcE.

HEZEKI'AH llOlVE, OF CORTLAND, NEV YORK.

HEATING AND VENTILATING RANGE.

SPECIFICATION forming part of Letters Patent No. 419,125, dated January7, 1890.

Application filed July 8, 1889.

To all whom it may concern:

Be it known that I, HEZEKIAH HOWE, a citizen of the United States,andaresident of Cortland, in the county of Cortland and State of New York,have invented certain n ew and usefullmprovemen'ts in Heating andVentilating Ranges; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enableothers skilled in the art to which it appertains to make and use thesame.

My invent-ion relates to certain new and useful improvements in combinedcooking and heating ranges; and it consists in the improved constructionand combination of parts, as hereinafter more fully set forth, andpointed out in the claims.

Referring to the drawings forming a part of the application, Figure 1 isa view in perspective of a cooking-range provided with my improvedsupplemental heatingoven, and showing suitable fines for connecting thesame with the baking-oven proper. Fig. 2 is a longitudinal sectionalview taken on line x 00, Fig. 4; Fig. gitudinally-corrugated bottom ofthe bakingoven; and Fig. +1: is a horizontal sectional view taken 011line 1 y, Fig. 2.

Similar letters of reference are used to designate corresponding partsthroughout the entire specification and several views of the drawings.

The letter A is used to represent the range proper, said range beingprovided with the usual grate, ash-pan, damper, fire-pot, griddles, andfuel-feed door, all of which parts, being of ordinary construct-ion,call for no specific mentioning in detail.

B is the heating-oven, so situated within the range as to allow of afree heat-circulating fine to be formed so as to permit of the radiatedheat and products of combustion to pass around the sides, bottom, andtop thereof, which flue is represented by the letters N, N, N and Theletter C indicates the usual reservoir situated at the rear of therange, and which is also adapted to have a heat-circulating spacesurrounding the same.

D represents a swinging damper secured to the downwardly-extendingpartition D, so as to allow when opened a free passage of 3, a detailview showing the lon-,

Serial No. 316,788. (lilo model.)

the retained heat surrounding the reservoir into the draft-flue N andthe purpose of which will be more fully explained hereinafter.

To the rear of the range I have shown, secured to the top and extendingupward, the pipe D for the exit of smoke and the products of combustion,and into which the foulair flue running upward from the bottom rearportion of the range extends. This flue is indicated by the letter E andhas its end extending a little beneath the base of the range, so as toadmit of the escape of the foul air contained in the room. A short flueextending from the heating-oven connects with the same and is adapted topermit of the escape of the im 'iregnated air contained therein, ashereinafter described. This flue is represented by the letter Said flueis provided with a damper E, adapted, when so desired, to entirely closethe opening of the flue E leading into the heating-oven, and thusprevent the flowing of the heated air contained in the oven therein.

Leading from the outside of the room through the floor and bottom of therange is the atmospheric air-inlet line F, which flue, after passingthrough the bottom of the range, runs crosswise with the bottom of thebakingoven within the draft-heating flue N until the opposite sidethereof is reached, whence it runs within the flue N perpendicular withthe oven-wall until it reaches a height equal nearly the top thereof, atwhich point it enters the oven, and into which it discharges fresh airpassing therethrough.

\Vithin the top of the baking-oven 1 provide openings G G, into whichfit the vertically-extei'iding flues H II for carrying off the heatedair from within the oven 13. The outward flow of the heated air iscontrolled by means of the dampers g 9, located within the lines II II.The vertically-extending flues run for any suitable height, and havesupported thereon the supplemental baking-oven 1, into which said fluesopen, so as to discharge the heated air from the baking-oven B. Saidsupplemental oven is provided with a suitable door or doors J forpermitting access to be obtained thereto, and is further provided at theends thereof, or any other suitable portion, with outlets j j j j, forthe escape of the retained air for distribution into the room. In orderto control such outflow of the heated air into the room, I provide theopenings with dampers. (Not shown.)

I have shown in the drawings the supplemental oven as being provided atits top with an upwardly-extol]ding flue K for conducting the heat fromsaid oven into distant rooms. Of course, if so desired, this feature maybe dispensed with, or a series of flues be-connected with the same, inorder to conduct the heat into different rooms at the same time, therebycausing general heating of the dwelling. \Vithin the flue K is located adamper 71' for controlling the flow of the heat. In order thatconnection may be made between the supplemental oven and the exit-fluefor products of combustion, I provide a short flue L and locate thereindamper Z; but, if so desired, the exit-pipe for the products ofcombustion may pass directly through the sup plemental oven andconnection be made therewith by means of suitable damper.

The bottom of the heating or baking oven is corrugated longitudinallywith the draft of the radiated heat, which serves to add greater suctionto the flow of heated air within the flue N, and at the same time todraw the circulating heat within or between the depressions formed bythe corrugations, and thus increase the heating-surface of theovenbottom. In order to gain'access to the oven, I provide the usualdoor at the side thereof.

Having first caused fire to be built in the fire pot or chamber M, thecirculation of the products of combustion result in the followingmanner: The damper 0, located within the flue N being closed, in orderto prevent the direct suction into the exit-pipe D the heated productsgenerated in the fire-pot will first arise and pass through the openingat the top of the back plate M of the fire-pot into and down the fiue N,to and along the longitudinal flue N, circulating in its course betweenthe depressions formedby the corrugated bottom of the oven-bottom,through the opening a into the chamber surrounding the reservoir 0,outward through the open damper 0 into the flue N and thence upward intoflue N from whence it makes its escape into the exit-pipe. By closingthe damper O the circulation of the products of combustion is caused toflow directly from the flue N into flue N without passing intothe'reservoir-chamber. During the circulation of the heated air roundthe heating-oven fresh air is continually entering through theinlet-flue F and being discharged into the heating-oven B, and it isobvious that as the heated products of combustion surround this flueduring the circulation thereof said air when it enters the heating-ovenis at a highdegree of temperature. After passing into the heating-oventhe hot air circulates therethrough and passes out through thevertically-extending flues H H (the dampers g g having been previouslyopened) into the supplemental heating-oven I, wherein it circulates, andfinally finds an outlet either through the openings jjjj, formedtherein, so as to cause the same to be distributed within the room, orinto the flue K, through which it is conveyed into distant rooms. Ofcourse this description, it will be understood, only applies when therange is to be used for heating purposes. \Vhen it is desired that theoven shall beutilized for cooking purposes,v the circulation of theheated air is somewhat changed, so as to finally find its outlet intothe foul-air flue, through which it enters the exit-pipe for the heatedproducts; but the circulation of the heated products of combustionremains the same as previously described. \Vhen the range is used forthe purpose of baking, it becomes necessary, inasmuch as the circulatingair contained in the oven becomes highly impregnated with thedeleterious vapors generated in cooking, that the heated air be carriedoff and not allowed to circulate through the several rooms. Therefore,instead of allowing this impregnated air to pass out through the flues HH, the dampers g g are closed and damper E, affording communication fromthe oven to the foul-air flue, is opened, thus causing the heated air,after circulating through the oven during baking, to pass through thesame into'the foul air flue and thence into the exit-pipe, where itpasses off with the products of combustion. In case the cooking is beingdone in the supplemental oven and not in the oven proper, the damper E,leading to the foul-air flue, is then closed and dampers g 9 opened, soas to permit of the ascending of the heated air through the flues H Hinto the supplemental oven. The exit-openings formed in this oven andthe damper in the flue K are closed against the exit of the impregnatedair and damper Z is opened, thereby causing the same to pass through theflue L into the foul-air flue,whence it is carried off, as previouslydescribed, with the products of combustion. In case the exitpipe Dpasses through the center of this supplemental oven it is only necessarythat the dampers affording communication thereto be opened, so as toallow of the direct passing of the impregnated air therein.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States is 1. Thecombination, with a range provided with a suitable oven, of asupplemental oven arranged transversely above the range, said ovenprovided with end perforated doors, vertical flues connecting the lowerand upper ovens, dampers located within said flues, a vertical flueextending from the transverse oven for conducting the air to upperapartments, an exit-flue passing from the rear of the range, a flueextending vertically and then rearwardly, so as to connect with theexit-flue, and a damper located within the rearwardlyextending portion,substantially as set forth.

2. In arange, the combination of an oven having an air-space beneath andin front thereof, said air-space communicating with the oven at theupper front portion thereof and provided at its lower rear portion withan opening, a damper for closing said opening, a vertically-extendingfresh-air pipe passing through the bottom plate of the range andeommui'iicating with the air-space beneath the even, a foul-air pipelocated to the rear of the oven, and a short fine connecting the lowerend of said foul-air fine with the opening in the lower rear portion ofthe oven, substantially as set forth.

The combination, with a range provided with a suitable oven, of asupplemental oven arranged transversely above the range, vertical fineseonnectin g the lower and upper ovens, dampers located within saidfines, an exit-fine passing from the rear of the range, a fine extendingvertically from the supplemental oven and then rearwardly, so as toconnect with the exit-flue, and a damper located within thereamvardly-extendi11g portion, substantially as set forth.

at. The eombinationgvith a range provided with a suitable oven, of asupplemental oven arranged transversely above the range, vertical tinesconnecting the upper and lower ovens, dampers located within said lines,a vertical flue extending from the transverse oven for conducting theair to upper apartments, and a damper located within the vertical flue,substantially as set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

IIEZEKIAH HOWE.

Witnesses:

LoUIs BAGGER, WM. F. FoLKs.

